Simulation of a new solar Ce:Nd:YAG laser system

Payziyev, Sh.; Makhmudov, Kh.; Abdel-Hadi, Yasser A.

doi:10.1016/j.ijleo.2017.12.071

Cited by 21 publications

(11 citation statements)

References 8 publications

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“…9, a focusing lens has been used in pumping configuration, which could create severe thermal conditions at the end of the rod and its damage. The effect of high thermal load could be prevented by using a cylindrical fused silica homogenizer 6 , 7 , 23 instead of that lens. Alternatively, the heat load problem can be solved with multirod configurations 24 , 25 or using an end-side pumping configuration but with a small diameter rod and small effective collection area 26 .…”

Section: Discussionmentioning

confidence: 99%

“…Their numerical results showed that combinations of the Nd:YAG and Cr:LiCAF active media for configurations with transverse and longitudinal pumping significantly increase the pumping efficiency of the Nd:YAG active medium in both cases. The authors of the work 6 proposed Ce:Nd:YAG crystal for solar lasers as an alternative to the widely used Nd:YAG claiming power-to-power efficiency can be doubled in a pumping configuration with a fused silica light guide homogenizer, 7 due to the excellent sensitizing characteristics of Ce ions in Ce:Nd:YAG 8 . However, despite all this, the first experiments carried out recently 9 showed that with a combined (end-side pumping) scheme of pumping Ce:Nd:YAG by solar radiation, it was possible to obtain only 6W, while Nd:YAG gave about 10 W at the same pumping conditions.…”

Section: Introductionmentioning

confidence: 99%

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Influence of thermal population of lower laser levels on the performance of end-side-pumped Ce:Nd:YAG solar laser

Payziyev

Sherniyozov

2022

J. Photon. Energy

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.We report the results of a theoretical study of the combined end-side pumped solar lasers to solve the problem associated with a recent experimental finding where the unexpected underperformance of the Ce doped Nd:YAG lasers in comparison to pure Nd:YAG lasers was observed. For this, we have developed a theoretical model based on space-dependent rate equations, which considers the effect of the thermal population of the laser levels on the laser output. It is shown that the main reason for the lower laser performance of recently experimentally realized Ce:Nd:YAG solar laser in the end-pumped regime and the fracture of the Ce:Nd:YAG rod at the process is the excessively high thermal load on the end of the laser rod. As a result of our study, we propose easily-feasible solutions based on optimal pumping and cooling configurations. The results of this study also demonstrate that under the necessary conditions, using Ce:Nd:YAG as an alternative to Nd:YAG in the combined end-side pumping configuration could increase the laser output by more than 1.5 times.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Influence of thermal population of lower laser levels on the performance of end-side-pumped Ce:Nd:YAG solar laser

Payziyev

Sherniyozov

2022

J. Photon. Energy

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“…Several such reports followed. [ 330–332 ] The Ce 3+ absorption is about ten times more intense than that of Nd 3+ . Moreover, Ce 3+ absorption being in the visible region nearly eliminates the multiphonon relaxation of Nd 3+ in YAG arising from NIR excitation.…”

Section: Aluminate Phosphors For Applicationsmentioning

confidence: 99%

Luminescent Materials Based on Aluminates: A Review

Revankar

Gedekar²,

Moharil

2022

Physica Status Solidi (a)

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An aluminate is a compound containing an oxyanion of aluminum. Many aluminates are found in nature. A large number of phosphors that are used in various applications, such as scintillation detectors, optical thermometry, longlasting phosphorescence, solid-state lighting, solid-state lasers, upconversion, bioimaging, and plasma display panels, are based on aluminate formulae. This review focuses on the synthesis and characteristics of such phosphors. The conventional as well as novel methods of synthesizing these phosphors are reviewed. The emphasis on commercially important aluminate phosphors is discussed.

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“…The output laser power in this case is more than 30 W, and the corresponding collection efficiency can be about 40 W/m 2 for solar intensity ~1000 W/m 2 higher than record power of 31.5 W/m 2 [12], obtained for end-side pumped scheme of solar laser. To further increase the efficiency, Nd:Ce:YAG [20] or external sensitizers [15] can be used.…”

Section: Intensity (Arb Units)mentioning

confidence: 99%

A Simple Multi-Pass Side-Pumping Scheme for Solar Powered Lasers

Payziyev¹,

Makhmudov²

2019

Recent Adv Photonics Opt

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The new multi-pass configuration of side-pumped Nd:YAG solar laser for enhancement of conversion efficiency is studied by computer simulation of the laser system. The active medium in the form of a slab providing effective heat dissipation during side pumping by concentrated solar radiation at the focus of a parabolic concentrator with a diameter of 1 m is considered. It is shown that multi-pass configuration doubles the output laser power.

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Simulation of a new solar Ce:Nd:YAG laser system

Cited by 21 publications

References 8 publications

Influence of thermal population of lower laser levels on the performance of end-side-pumped Ce:Nd:YAG solar laser

Influence of thermal population of lower laser levels on the performance of end-side-pumped Ce:Nd:YAG solar laser

Luminescent Materials Based on Aluminates: A Review

A Simple Multi-Pass Side-Pumping Scheme for Solar Powered Lasers

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